l keyes



E. L. KEYES.

TACKING AND WELT BUTTING MACHINE.

APPLICATION FILED ocr. 7. m2.

1 1. 4,94., Patented Aug. 15, 1916.

3 SHEETSTSHEET 3.

7 l, W 92 I '1" I W/ 7/v55555.

finir sanar oren.

EUGENE I.. KEYES, OF BOSTON, MASSACHUSETTS, ASSIGNOR T0 UNITED SIICJE MACHINERY COMPANY, OE PATERSON, NEW JERSEY, A CORPORATION OF NEW J' ERSEY.

TACKING AND VfELT-BUTTING MACHINE.

Specification of Letters Patent.

Patented Aug. 15, 1916.

To all whom t may concern:

Be it known that I, EUGENE L. KEYES, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain Improvements in Tacking and VVelt-Butting Machines, of which the following descriptien, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for-,use in the manufacture of boots and shoes, and is herein shown and described by way of exemplification as applied to a machine for beveling or skiving the butt ends of the welt of a lasted and welted shoe and for tacking the upper to the innersole in the region of the welt end, although it will be understood that many features of the invention are susceptible of wide application. v

After the operation of attaching the welt to a welted shoe has been performed the ends of the welt are often too long and are of substantial thickness; hence, it is desirable, in order that the outsole may be properly positioned upon the heel seat, that the ends of the welt be skived off or beveled at the proper length to a thin edge.

In welted shoes there is a short space between the ends of the inseam and the heel seat lasting tacks next to the shank, where the upper is unattached to the innersole, and has, consequently, a tendency to draw or bulge away from the last. It is desirable, therefore, to provide means for conforming the upper closely to the last at these points and for driving one or more tacksthrough the upper and innersole to hold the upper in lasted position. A machine for performing a similar tacking operation is shown and described in United States Letters Patent No. 1,066,916, granted July 18, 1913, on my application filed October 3, 1910.

@ne of the objects of the present invention is to provide, in a tacking machine such, for example, as that shown and described in the above patent, means for skivingI or butting the ends of the welt to prepare the work for the tacking operation.

Another object of the invention is to improve generally machines of the above type, and particularly to provide an improved mechanism for supporting and clamping the shoe during the operation of butting the welt as well as during the operation of tacking the upper at a point adjacent to the welt end.

One of the important features of the inventionrelates to the combination of laterally movable shoe clamping means which engages the shoe in the welt crease, preferably at a point forward of the heel seat, and also engages the slice at the sides thereof, with welt butting means which is mounted for movement with the clamping means and is arranged to swing relatively thereto about a center above the shoe to effect the welt butting operation.

As a further feature of the invention the welt crease engaging members of the clamping means, or extensions thereof, are arranged in the path of the welt butting knives and form anvils or chopping blocks against which the edges of the welt butting knives act to skive and chop off the welt ends.

A further feature of the invention consists in a novel construction and arrangement of shoe clamping mechanism. As herein shown this mechanism includes welt crease engaging members which are resiliently mounted on supports which are moved laterally of the shoe to bring the crease engaging members into engagement with the welt crease to effect an upper tightening action. The upper tightening members, herein shown as blades, are connected through equalizing means to side clamping devices which are moved inwardly against the sides of the shoe as the welt crease engaging blades are held from movement by the resistance of the shoe upper and act to clamp the upper tightly against the sides of the shoe.

These and other features of this invention, including certain combinations of parts and details of construction, will appear from the following description of a preferred embodiment of the invention and will'then be pointedY out. in the. claims.

In the drawingsf-Figure 1 is a side elevation in section of thel machine; Fig. 2 is a front elevation; Fig. 3 is a sectional plan view taken on the line 3 3 of Fig. 1; and Fig. -1 is a sectional detail.

Referring to Fig. 1 of the drawings, the character 2 indicates the column of the machine which rests preferably on three legs.

In the column 2 a post 4 is' mounted for vertical adjustment and to the post the head 6 of the machine is bolted. The tacking mechanism of the machine is substantially the same as that of the commercial insole t-acker which is fully described in United States Letters Patent, No. 1,106,393, granted August 11, 1914, on application of Fred. L. MacKenzie, to which reference may be had for explanation of parts not referred to herein. As therein shown the clutch controlling mechanism is operated by a treadle rod to start the tacker, the tacker stopping after the insertion of a single tack.

ln thel illustrated machine equipped with the present invention a treadle 10 is connected to a rod 8 through a lever 12 which is linked at the rear end to the treadle and at the front end is pivoted to a tubular post 14 in which slides a rod 16, the latter being supported by a spring 20. The rod 16 is adjustably connected, as shown in Fig. 1, to the lower end of a slide 22 which is mounted for vertical movement in ways formed on the column of the machine. A member 26 is pivoted at 28 to the slide 22 for lateral swinging movement. To the lower end of the member 26 is pivoted a tubular jack post 30 in which slides a rod 32 which is upheld by a spring 36 and is held from rotation by a pin 34 located in a slot in the rod. In the upper end of the rod or spindle 32 is a last pin 38 which is mountedfor slight lateral tipping movement as shown. In the front face of the rod 32 teeth are formed which are engaged by a dog 40 pivoted at 42 to the jack post 30 and having an arm adapted to bev engaged by a resilient finger 44 which is pivoted to the member 26 at 46 and has a depending operating arm 48. The arm 48 has a laterally extended lower face so as to contact in all positions of swinging movement of the member 26 with a pin 50 which slides freely through the slide 22. Back of the pin 50 is a fixed cam plate 52 with which the pin 50 engages when the slide 22 is raised by movement of the treadle 10. On the upper end of the member 26 is a cross piece 54 having a guide plate 56 which engages the shoe and guides it inv position beneath the cross piece 54.

It will now be clear that when the last pin 38 is swung in the position shown in dotted lines, Fig. 1, a shoe may be readily placed thereon and swung backwardly until the heel seat portion of the shoe is beneath the cross piece 54. During this movement, the dog 40 is out of engagement with the teeth on the rod 32' and the rod with the shoe thereon is upheld by the spring 36' against the guide 56. The vertical position of the shoe is thus determined without respect to the height of the crown of the last. After the shoe is'positioned as described the treadle 10 is operatedy to elevate the slide 22 whereupon the pin 50 engages the cam plate 52 and is pushed outwardly against the arm 4S which raises the outer end of the linger 44 against the operating arm of the dog 40, thereby forcing it into engagement with the teeth on the rod 32 to lock it and the shoe sustained thereon in vertical position. rlhe lower end of the arm 48 is enlarged laterally so that as the shoe clamping and supporting means swings about the pivot 2S the pin 50 will remain in contact with the arm. Further manipulation of the treadle raises the slide 22 to bring the shoe against the nozzle 60 of the tacker and trips the clutch through the rod S to insert a tack in the shoe. lt will be observed that the construction described automatically locks the spindle to support the shoe firmly for the operation of the tacker and permits the member 26 and the parts carried thereby, including the shoe, to be swung laterally about the pivot 2S so that the tack may be inserted in the margin of overlasted upper on either side of the shoe. As best shown in Fig. 3, stops 62 are provided which contact with the frame 6 of the machine head to limit the lateral swing of the shoe and to position the same properly with respect to the tacker.

Means for effecting a lateral clamping of the shoe is carried upon the upper end of the member 26. This means comprises, as best shown in Figs. 2 and 3, welt crease engaging members 7 0 and side engaging members 7 The upper portions 71 of the members are in the form of thin blades preferably of brass which pass under the ends of the welt and form anvils against which the welt butting knives act to sever the welt ends. The members 70 and blades 71 form locators which determine the position of the welt ends laterally of the shoe and relatively to the welt butting knives. The members 70 and 72 are mounted on slides 7B, 75 which are connected together for equal and opposite movement by pinions 74. The slides 73, 7 5 are mounted in ways formed in the forward ends of levers 76, Fig. 1, which are pivoted at 7 S and have on their rearwardly extending arms, Fig. 3, rolls which engage cam slots S0 formed in a hand lever S2 pivoted at 84 to the member 26 between the slots S0. The slots are so formed that movement of the lever 82 will effect movement of the forward ends of the levers 76 with the clamping members 70, 72 toward and from each other.

After the shoe has been positioned vertically by engagement with the guide 56, as described, the lever 82 is operated to bring the clamping members 70, 72 into clamping relation with the shoe. Springs 86 normally hold the welt crease engaging members 70 toward each other so that they first engage the shoe, the laterally extending upper portions 71 thereof passing under the ends of the welt and the lower portions clamping the upper against the last. After the members have engaged the last they, of course, become stationary and further movement of the lever 82 causes the clamping members 72 to advance into engagement with the opposite side faces of the last, whereupon they too are arrested and further movement of the handle 82 causes the members 70, 72 to be firmly clamped against opposite sides ofthe shoe where they are held during the tacking and welt butting operations with an unyielding pressure.

Means is provided for cutting off the surplus material usually present at the ends of the welt and for beveling off the ends of the welt so that they will not interfere with the proper positioning of the outsole. As shown herein, welt butting knives are mounted upon the levers 76 which carry the shoe clamping devices and are carried thereby to and from the shoe. As a result of this arrangement when the clamping members are brought into proper clamping relation to the shoe, 'the welt butting knives are properly positioned to cut off the ends of the welt at the proper point and at the desired bevel.

As shown, uprights 90 are provided on the outer ends of the clamp supporting levers 76 and knife carriers 92 are pivoted at 94 to the upper ends of the uprights 90 and carry the knives 96 which are curved from the center 94 of the knife carrier. Vhen the knife carriers 92 are oscillated about their pivot, the knives shear off the welt ends on a bevel against the upper faces of the anvil members or chopping blocks 71 which are formed with shoulders (Fig. 4) with which the edges of the knives contact to chop off the end of the welt. As has been stated, the members 71 are positioned beneath the free ends of the welt as clearly shown in dotted lines, Fig. 4, and the knives when operated, contact with the welt and act against the anvil members 71 to bevel off and bevel the welt as shown in full lines, Fig. 4. To oscillate the knife carriers to do their work, connecting rods 98 are provided which have length adjusting means 100 and ball and socket connections with the knife carriers at one end and at the other end connections with arms 102 which are fixed to a rock-shaft 104 mounted in the upper portion of the machine frame. Upon one of the arms 102 is provided a slide 106 on which is mounted a roll 108. The continuously running drive wheel 110 of the machine is provided with a cam projection 112. rllhe roll 108 is normally (see Fig. 2) in a position which is out of the path of the cam projection 112 on the drive wheel but when the slide 106 is moved downwardly the roll 108 is brought opposite to the peripheral edge of the wheel 110 and the cam projection 112 strikes the roll 108 and swings the arms 102 forwardly about their pivot 104, thus operating through the connecting rods 98, the knife carriers 92 and knives 96 to do their work. To operate the slide 106 a rod 114 connects the slide 106 with an arm 116 fixed to a rock-shaft 120 having an arm 122 connected to a rod 124 carrying a knee pad 126 and normally held outwardly by a spring 128. It will be seen that pressure upon the knee pad 126 lowers the slide 106 and throws the welt butting knives into operation. rlhe ball and socket connections of the rod 98 with the knife carriers 92 and their actuating mechanism enables the knives to be swung to and from the shoe with the clamping members and to accompany the clamping members and shoe as the shoe is swung from side to side to enable tacks to be driven at opposite edges of the sole. Preferably the welt butting operation is performed with the shoe in a central position and prior .to the driving of the tacks on the sides of the shoe in the region of the heel breast but the connection described permits the welt butting operation to be performed when the shoe is swung out of central position.

In the operation of the machine, supposing the jack to be in the position shown in dotted lines, Fig. l1, a shoe is placed on the heel pin 88 and swung inwardly to bring the ack post 32 into approximately `he full line position of Fig. 1 with the heel seat of the shoe beneath the guide 56. During this movement the post 82 is free to move longi- 'tudinally against the comparatively. light spring 36. The clamping mechanism is now operated by means of the hand lever 82 which brings the anvil members 71 beneath the ends of the welt and the clamping members 70, 72 intol clamping engagement with the shoe for holding the upper in close contact with the last about the waist and shank portion of the shoe. rllhe operator now presses the knee -pad 126 which throws the welt butting knives into operation as described, causing them to skive oif the ends of the welt as stated. The operator now presses the treadle 10 which acts through the lever 12 to raise the slide 22 which carries the jack, shoe clamping members, and welt butting knives upwardly to bring the bottom of the shoe against the nozzle of the tacker and to cause the dog 40 to act to lock the jack against depression. Prior to or during this movement, the shoe and its clamping mechanism is swung to one side about the pivot 28 until one of the stop screws 62 (Fig. 8) comes in contact with the frame 6 of the tacker, which movement positions the edge of the sole and the margin of the overlasted upper beneath the noazle of the tacker, and further movement of the treadle presses the shoe hard against the tacker. The spring 20 serves to permit the treadle to be further depressed without raising the shoe and by this further depression, the treadle through the rod 8 acts to trip the clutch which controls the operation of the tacker. After a tack is driven, the treadle is released and the shoe swung to the other side against the opposite stop 62 and the treadling operation repeated, to cause the second side of the shoe to be tacked, after which the shoe is removed.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is :h

l. A machine of the class described having, in combination, mechanism for butting a welted shoe, a shoe supporting j ack, a shoe clamping mechanism carried by the jack and comprising at each side of the rear part of the shoe a member to engage the side of the shoe, a member te engage the shoe in the welt crease, an equalizing connection between said members, and means for applying shoe clamping force through said connection and members to prepare the shoe for the action of the butting mechanism.

2. In a machine of the class described, the combination of laterally movable shoe clamping means for engaging the shoe in the welt crease forward of the heel seat and also at the sides of the shoe, welt butting means mounted for movement with the clamping means and arranged to swing relatively thereto about a center above the shoe to effect the welt butting operation, and means for operating` the butting means. 3. ln a machine of the class described, the combination of clamping means comprising bladesconstructed and arranged to engage a welted shoe in the welt crease -to apply yieldinglyby lateral pressure a substantial lasting tension to the upper, side clamps for engaging the sides of the shoe adjacent to the crease engaging blades and constructed and arranged to maintain by lateral pressure the lasting tension effected by the said blades and to render the blades unyielding when the side clamps engage the sides of the shoe, and means for operating said clamping means to effect the shoe clamping operation. Y

L1. A welt butting machine having, in combination, welt butting knives, means for operating the knives simultaneously by power independently of the other parts of the machine, and means acting in the welt crease on opposite sides el' the shoe to hold the upper against the last and to locate the welt ends for the operation of the welt buttymg knives, said means also serving as cutting blocks against which the edges et the knives act to chop cti" the welt.

5. ln a machine of the class described, the combination of means for clamping the shoe at the side and in the welt crease, anvil means carried by the welt crease engaging means and knives mounted for oscillation to bring their edges into and out ot contact with the said anvil means to` skive and chop off the welt ends.

6. In a machine of the class described, the combination or' means for clamping a shoe at the side, means engaging the shoe in the welt crease, and welt butting means mounted for movement with the clamping means and having a knife edge which acts against the face of an extension of the welt crease engaging means to sever the welt ends.

7. In a machine of the class described, the combination of clamping means for enffaging the shoe at the sides, means for engaging the shoe in the welt crease adjacent the ends of the welt and having a portion adapted to extend beneath the welt and into the path of the knife at the point where the welt is to be severed, welt butting knives mounted in constant operative relation to the welt crease engaging means, and means for operating the knives to sever the welt.

S. A machine of the class described having, in combination, upper tightening devices movable toward and from each other for engaging the welt crease at opposite sides of a welted shoe, welt butting knives movable with the upper tightening devices to operative positions over the welt ends, means for engaging the opposite sides of the shoe beneath the upper tightening devices to hold the shoe with unyielding pressure, and means to operate the knives lengthwise of the welt to bevel the welt ends.

9. A welt butt-ing machine having, in combination, butting knives, manually operated means for clamping the shoe laterally and for locating the welt ends relatively to the welt butting knives, means :1ctuated by power for operating the knives, and means for inserting tacks in the overlasted margin of the upper at points located at the rear of the welt ends and on opposite sides ot' the shoe.

l0. A welt butting machine having, in combination, welt butting knives, power means for operating the knives, clamping means operated manually to clamp the shoe laterally and to locate the welt ends relatively to the knives, and tacking means adapted to operate upon each side of the shoe in turn to secure to the insole the margin of overlasted upper adjacent to the welt ends.

ll. A welt butting machine having, in combination, means for sustaining a shoe for easy vertical movement by contact with a last, means for clamping the shoe laterally to locate the shoe and its sustaining means vertically to hold the upper against the last, and to locate the ends of the welt 'for the welt butting operation, knives arranged for operation by power simultaneously to butt the welt, tacking means, means for raising the shoe for the Operation of the tacking means, and means acting automatically as the shoe is raised to lock the last sustaining means from downward movement in response to the action of the driver.

12. A. welt butting machine, having, in combination, welt butting means arranged to operate on both welt ends simultaneously, a single tacking means located between the v. elt butting means, means for elevating the shoe manually toward the tacking means, and movable laterally to permit operation of the tacker on either side of the shoe alternatively, and means independent of the shoe raising means for controlling the operation of the welt butting means.

13. fr machine of the class described having, in combination, a tacker, welt butting means adapted to act on both ends of the welt simultaneously, means for clamping the upper against the last positively at the welt crease and at the sides oi the shoe, means for presenting the shoe to the tacker while it is still clamped, and means for holding the shoe from vertical movement relatively to the clamping means during the operation of the tacker.

111. In a welt butting machine, the combination ci' welt butting knives, ltacking means, last supporting means which is normally movable vertically relatively to the tacking means, means for clamping the shoe, means for raising the last support t'or the operation of the tacking means, means for rendering the last supporting means rigid te receive the blow of the tacker when the support is raised, and means for pei-ating the butting knives by power while the shoe is rigidly supported.

15. A welt butting machine having, in combination, welt butting knives, levers pivoted at their upper ends to the machine frame and at their lower ends connected to the knives, a slide on one of the levers carrying a cam roll, a cam for operating on the cam roll when the slide is moved upon the lever and a push rod for moving the slide to cause the cam to operate the knives.

16. ik welt butting machine having, in combination, welt butting knives, a cam adapted to be continuously driven, a lever pivoted adjacent to the cam, a slide on the lever having a member thereon arranged to be brought into and out of operative relation to the cam when the slide is moved, 0perative connections from the lever, to the welt butting knives, and means under the control of the operator for moving the slide.

17. A machine of the class described having, in combination, upper tightening devices movable toward and from each other for engaging the shoe bottom under the welt ends, said devices having a formation adapting them to form anvils against which welt butting knives may act to bevel. the welt ends, side clamping members having constant operative connection with the upper tightening devices, welt butting knives movable with the said tightening devices to operative position over the welt ends, and operating means to move the knives lengthwise of the shoe and cause them to cooperate with said devices to bevel the welt ends.

18. In a machine of the class described, the combination of upper tightening blades mounted for movement laterally of the shoe to engage the shoe in the welt crease, side clamping members movable relatively to the blades, means for operating the side clamping members to engage the sides of the shoe subsequently to the engagement of the upper tightening blades in the welt crease, welt butting knives mounted in constant operative relation to the welt oithe shoe carried by said upper tightening devices and clamping members, and means for operating the knives to butt the welt.

19. A machine of the class described hav` ing, in combination, clamping means for engaging the shoe in the welt crease and at the sides of the shoe below the welt crease engaging means, levers carrying said clamping means for movement to and from the shoe, uprights on said levers, carriers pivoted to the uprights, welt butting knives mounted on the carriers, and means for operating the knives to butt the welt ends of the shoe held by the clamping means.

20. In a machine oi the class described, the combination of a single tacker, welt butting means, and welt butt end locators engaging the shoe at the two sides to locate the welt butts for the operation of the welt butting means and movable with the shoe to present the two sides of the shoe, with the welt ends still held by the locators, for the operation of the tacker.

21. In a machine of the class described, the combination of a single tacker, upper tightening devices engaging the welt crease on opposite sides of the shoe and movable therewith to present the two sides of the shoe successively to the tacker, and welt butting mechanism constructed and arranged to operate upon both ends of the welt simultaneously while the upper is held by the upper tightening devices.

22. In a machine of the class described, the combination of welt butting means constructed and arranged to operate upon both welts at once, a tacker constructed and arranged to operate upon the upper adjacent to one welt butt at a time, a shoe clamp having means to engage a welted shoe in the welt crease at the butt ends yof the welt to tighten the upper materials into position to be fastened, and connected mechanism for operating the tightening means at the two la; A1,194,394

sides of the sboe, said clamping means opname to this specification in the presence of erating to maintain the welt ends n positwo subscribing witnesses. tion to be treated by the welt butting means and being movable with the shoe to present EUGENE L' IXEYLS Y5 the two sides of the shoe successively to the Witnesses:

tracker. EVERETT W. VARNEY,

n In testimony whereof I have signed my JAMES O. WRIGHT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Correction n Letters Patent No. 1,194,394.

It is hereby certified that in Letters Patent No. 1,194,394, granted August 15, 1916, upon the application of Eugene L. Keyes, of Boston, Massachusetts, for an improvement in Taoking and Welt-Butting Machines, an error appears in the printed specification requiring correction as follows: Page 3, line 47, for the Word Signed and sealed this 21st day of November, A. DV., 1916.

F. W. H. CLAY,

.Acting O'oimnissi .me1n of Patente.

[sEAL] 

